Related Questions

In a grid control of mercury arc rectifiers when the grid is made positive relative to cathode, then it the electrons on their may to anode.
ক accelerates
খ decelerates
গ any of the above
ঘ none of the above
In mercury arc rectifiers having grid, the arc can be struck between anode and cathode only when the grid attains a certain potential, this potential being known as
ক maximum grid voltage
খ critical grid voltage
গ any of the above
ঘ none of the above
which of the following works as an obstacle to excessive changes in the share price?
ক Book building
খ Circuit breaker
গ Price cheker
ঘ Price cutter
Unemployment is a great obstacle----------our national development.
ক at
খ to
গ of
ঘ in
Choose the antonym for the word ‘obstacle’.
ক Hindrance
খ Impediment
গ Hurdle
ঘ Support
Poverty is often an obstacle _____ higher studies.
ক in
খ to
গ with
ঘ without
Ignorance is obstacle ___ progress.
ক to
খ for
গ with
ঘ from
`Life is a cause with endless obstacle to hurdle' is a quote made by-
ক Martin Luther king
খ Voltaire
গ Nelson Mandela
ঘ Confucius
In the passage, the word obstacle refers to;
ক poverty and lack of opportunity
খ lack of institutions
গ Lack of entrepreneurial spirit
ঘ dimanation of the rich
Which one is a renewable energy source ?
ক Coal
খ Gas
গ Wind
ঘ Petroleum

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